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Vacuum

µbartoinHg

Convert microbar (vacuum) (µbar) to inches of mercury (vacuum) (inHg).

Factor1 µbar = 2.952998e-5 inHg

Converter

µbar

Accepts numbers or expressions, e.g. 150 + 14.7

Result
2.953inHg

Rendered to 6 significant figures.

Formula

Formula
inHg = µbar × 2.952998e-5

Multiply any value in microbar (vacuum) by 2.952998e-5 to obtain the value in inches of mercury (vacuum).

Worked example

Convert 100000 µbar to inHg.

  1. 01Start with 100000 µbar.
  2. 02Multiply by the conversion factor: 100000 × 2.952998e-5 = 2.953 inHg.
Result100000 µbar = 2.953 inHg

Conversion table

µbarinHg
12.953e-5
25.906e-5
50.00014765
100.0002953
200.0005906
500.0014765
1000.002953
2000.005906
5000.014765
10000.02953

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from µbar to inHg?
1 µbar equals 2.952998e-5 inHg. To convert, multiply the value in microbar (vacuum) by 2.952998e-5.
How do I convert 1 µbar to inHg?
1 µbar = 2.953e-5 inHg. For any value, multiply by 2.952998e-5.
How do I convert inHg back to µbar?
Divide by the same factor — or equivalently, multiply by 33863.89. So 1 inHg = 33863.9 µbar.
When would I need to convert microbar (vacuum) to inch of mercury (vacuum)?
Vacuum-pressure conversions between µbar and inHg are common in vacuum-chamber instrumentation, pump-down endpoint specification, semiconductor and deposition process work, freeze-drying, electron-microscopy column pressure, vacuum metallurgy and HVAC / refrigeration service. Torr, mmHg and inHg dominate manometric vacuum gauges; mbar is standard on European instruments; micron Hg and mTorr cover high-vacuum work; Pa and kPa are the SI references. This category is vacuum / instrumentation intent — dimensionally the same as pressure, but kept separate so process-pressure searches and vacuum searches stay on the right page.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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